A disturbing medical incident in space, which left one astronaut temporarily unable to speak, has laid bare one of the most pressing challenges facing NASA as it revs up plans to return humans to the lunar surface in 2024: the potential for serious health crises far from Earthly medical facilities.
The astronaut, whom NASA for privacy reasons has not identified, experienced what the agency referred to as a “medical episode” during a recent space flight, which hampered verbal communication for a number of minutes before returning to normal. This previously unpublicised event only came to light during a review of telemedicine capability aboard the International Space Station (ISS).
The incident has raised concerns about the level of medical support available on deep-space missions and brought to the fore, ongoing debate regarding the risks astronauts are exposed to when travelling beyond the Earth’s orbit. The astronaut involved in the incident was able to receive prompt communication-based assistance from medical professionals on Earth, but the event is a vivid reminder of the potential dangers that astronauts face as NASA’s Artemis program sets its sights on the moon, and ultimately Mars.
Telemedicine, or the practice of caring for patients remotely when the provider and patient are not physically present, plays a crucial role in maintaining astronaut health during space missions. However, the distances involved in future missions to the moon and especially Mars, where it can take from 4 to 24 minutes for a signal to reach Earth, complicate this practice massively.
“In an astronaut, especially months into a flight, any symptom is cause for concern,” said Dr. Shannan Moynihan, deputy chief of space and occupational medicine at NASA’s Johnson Space Center, noting the particular challenges of diagnosing and treating ailments in a zero-gravity environment.
NASA has long acknowledged that space travel poses numerous physical and mental health risks, ranging from bone and muscle loss to exposure to high levels of radiation. However, unexpected emergencies, such as the one experienced by the un-named astronaut, add another layer of complexity and peril.
The Artemis program, an initiative set to return humans to the lunar surface and eventually take us to Mars, faces a myriad of technological, logistical and health challenges. This incident is further evidence of the difficult task ahead and proves just how vital it will be for the agency to refine its protocols for managing medical emergencies in space, including better communication systems and advanced telemedicine tools for deep space missions.
“NASA has shown admirable determination to protect its astronauts from the risks associated with space travel,” said Matthew Hersch, an associate professor of the history of science at Harvard University. “But as we push deeper into the cosmos, the question isn’t whether astronauts will experience serious health problems, it’s how those problems will be handled.”
It’s reported that NASA is working closely with private sector partners to solve these issues. This includes SpaceX, which is providing transportation to the ISS and whose Starship is expected to play a pivotal role in the Artemis missions, as well working with Techshot and other niche technology firms who specialise in space-faring medical equipment.
Having had a reality check about health risks in long-duration spaceflight, NASA now confronts the challenge of devising future protocols to secure astronaut health. With the invigorating shadow of lunar and Martian aspirations lingering above, the excitement about the possibilities of space exploration is inevitably twinned with pragmatism about its dangers.
This poignant medical incident poses as a sobering nod to the solemnity of the risks involved. It also pertinently underlines the tenacity that it will take to get us sustainably back to the moon and more ambitiously, to Mars. As we stand at the threshold of a new era in space exploration, the twin thrills of discovery and danger will continue to walk hand in hand. This episode reminds us, with stark vividness, of that truth.
